The gardener's magazine and register of rural & domestic improvement (1826)
Loudon, J. C. (John Claudius), 1783-1843, A. & R. Spottiswoode, printer, United States. Patent Office. Scientific Library, former owner DSI · London : Longman, Rees, Orme, Brown and Green · leaf 224
tances, in order to let theair out. Where pipes ascend and descend on very irregularsurfaces, the strain on the lowest parts of the pipe is alwaysthe greatest; unless care is taken to relieve this by the judi-cious disposition of cocks and air holes. Without this pre-caution, pipes conducted over… … Construction of Fountains for Gardens. 215 specific gravity of the water and on that of the air which ithas to penetrate. A jet of salt water will rise higher thanone of fresh water; a column six inches in diameter higherthan one of three inches ; and a jet of water of any dimen-sion higher at…
